Tadevosyan T.L. 2000. [Monocomponent Edaphotop's Simulation in Desertification Processes Research.] // International Scientific conference "Biogeographical and ecological aspects of desertification processes in arid and semiarid enviroments",Yerevan, pp. 62-64. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2000. [The Introduction of Some Rare and Endangered Plants of the Flora of Armenia In The Yerevan Botanical Garden] (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2001. [About the Ex Situ Cultivation of Tamamshjan's Saltwort (Salsola tamamschjanae Iljin, Dicotyledones, Chenopodiaceae)] // Collect. of articles of the young researchers, Yerevan, «Gitutiun», 1(2): pp. 34-39. (In Russian)

Tadevosyan T.L. 2001. [Communication Behavior of Sunwatcher Lizards (Phrynocephalus persicus de Filippii (Reptilia, Sauria, Agamidae.) About ]// Thesises on the republical zoological conference, Yerevan, pp. 109-111. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2001. [Interactions of Ephemaral Vegetation of Stellaria media and Xerophilous Bush - Calligonum polygonoides L. In Conditions Ex Situ.] (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2001. [Lythoprotection of the Biodiversity in Arid Regions of Armenia].V-th conference of young scientist in Pushino. Biology- sciense of XXI century. Puschino, p. 298. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2001. [On the Ecology of the Jointweed-like Calligonum (Calligonum polygonoides L., Dicotyledones, Polygonaceae)]. Proceedings of republican youth scientific conference "The future of ecological science in Armenia",Yerevan, «Gitutiun», pp. 35-42. (In Russian)

Tadevosyan T.L. 2001. [On the Lizards Adaptations For «Goravan Sands» and It's Neighbourhood Environment Inhabitation] // Thesises on the republical zoological conference, Yerevan, pp. 111-112. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2001. [On the Syntopical Distribution of Biodiversity of Vascular Plants and Vertebral Animals in the System of Biotops of the S-W, Piedmont of the Urtz Mountain Range.] // Proceed. Of II republican youth scientific conference "XXI century: The future of ecological science in Armenia", Yerevan, «Gitutiun», pp. 83-90. (In Russian)

Tadevosyan T.L. 2001. [The Fenological Identification of Persian Sun-Watcher Lizards (Phrynocephalus persicus de Filippi 1863. Reptilia, Sauria, Agamidae).] // Collect. of articles of the young researchers. Yerevan, «Gitutiun», 1(2): pp. 62-67. (In Russian)

Tadevosyan T.L. 2002. [The Conception of Biosphere Reserves.] // Proceed. Of III republican youth scientific conference "XXI century: Ecological science in Armenia", Yerevan, pp. 56-57. (in Armenian) Request a scanned copy via e-mail

Tadevosyan T.L. 2002. [New Opportunities of Investigation of the Nest Incubaion of Phrynocephalus helioscopus persicus De Filippi (Reptilia, Sauria, Agamidae).] // Pushinskaja Scool-Conference of Young scientists. (In Russian)

Tadevosyan T.L. 2002. [On the Syntopical Distribution of the Flora in "Goravan sands" Ecosystem] // Flora, Vegetation and Vegetable Resources of Armenia. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2002.[ Poisonous Snakes as an Ecological Risk Factor and The Ways of It's Neutralisation.] // Proceed. Of III republican youth scientific conference "XXI century: Ecological science in Armenia", Yerevan, pp. 20-36.(In Armenian)

Tadevosyan T.L. 2003. Goravan Sands in Danger. // Caucasus Environment, No 3 (4): 27-30.(Eng. Rus) Request a scanned copy via e-mail

Tadevosyan T.L. 2003. [Modern Antropogenic Impact on The Population of Darevsky's Viper (Pelias (Vipera sensu lato) darevskii Vedmederja, Orlov & Tunyev, 1986) in The Limits of Southern Part of Javakhety Ridge (Armenia).] // Materials of Region. Sci. Conf. Consecrate 60-yaer of Inst. Zool. NAS RA, Yerevan, pp. 143-144. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2003. Rock lizard of the Caucasus. //Caucasus Environment, No 3 (4): 46-47(Eng. Rus) Request a scanned copy via e-mail

Tadevosyan T.L. 2004. Coevals of the age of rerptiles / Caucasus Environment, No 2 (7) : 22-24 (Eng. Rus).Request a scanned copy via e-mail

Tadevosyan T.L. 2004. [Maping of Presuming Range of Darevsky's Viper.] // 8th Pushinskaja Scool-Conference of Young scientists. (In Russian): Download PDF copies: Eng/Ru

Tadevosyan T.L. 2006. [Plant Cover of Microhabitats of Phrynocephalus persicus in Goravan Sands Sanctuary, Armenia] // 9th Pushinskaja Scool-Conference of Young scientists. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L.2006. Habitat Suitability for Reptiles in the Goravan Sands Sanctuary, Armenia / Herpetological Conservation and Biology, 1 (1):40-45. also available at http://www.herpconbio.org

Abstract. – The Goravan Sands Sanctuary is an important Armenian wildlife conservation area. The objectives of my study were to assess habitat suitability for reptiles within the sanctuary by comparing species richness, total abundance and species diversity across 35 random quadrats. I present the mean abundance data of 5 reptiles: Phrynocephalus persicus, Eremais pleskei, Eremias strauchi, Lacerta strigata and Testudo graeca. Maps of the relatively uncommon lizard P. persicus reflect species richness patterns, whereas maps of the most abundant lizard E. pleskei more accurately reflect total reptile abundance and species diversity. About 71 % of the area of the patches is covered with regions of high and moderate species diversity – suitable for reptile inhabitation. Forteen percent of the area is covered with patches of low diversity. The moderate and highly suitable patches are recommended for intensive conservation management planning.
Key Words.—abundance; species diversity; habitat suitability; interpolation maps; reptiles; Armenia

Tadevosyan T.L. 2006. New Data on Abundance and Distribution of the Persian Toad-Headed Lizard in the Goravan Sands Sanctuary, Armenia / Electronic Journal of Natural Sciences. National Academy of Sciences of The Republic of Armenia. 2 (7) : 45-50. available at http://www.ebsco.org

Abstract. The Goravan Sands Sanctuary is the only “especially protected area” supporting the endangered Persian toad headed lizard. The objectives of the study were 1) to determine mean abundance of P. persicus in order to compare it with earlier published data and to develop grounds for further monitoring and 2) to delineate the spatial distribution of P. persicus within the Goravan Sands Sanctuary for conservation management planning. Visual encounter survey of 35 random quadrats (20x20 m) and on the way to the quadrats was implemented to determine the lizard’s abundance and distribution. The locations of specimens were registered with a GPS unit and mapped using Arc View GIS. Mean abundance of P. persicus in April-May, 2005 was Mean ± SE = 0.457 ± 0.14; R – 0-4, n = 35, or nearly 11 specimens per hectare. It is nearly 4 times higher than in 1980s. However, no population increase is stated. 5 isolated population fragments were detected for P. persicus within 4 of 10 plots of sandy habitats. Sizes of population fragments (numbers of specimens) directly correlate with area (RSp =0.96;p<0.0001) and perimeter (RSp =0.91; p<0.0001) of sandy plots, and with edge effect values (RSp =-0.65; p<0.05). Plots of sands with area of about 2 ha do not support P. persicus. As conservation actions for larger habitat plots supporting all population fragments it is proposed to increase control and develop a public awareness system, to limit overgrazing, collection of lizards and sand mining For poorest population fragments it is suggested also to perform translocations and support the populations using bordering within natural vivaria.
Key words: Phrynocephalus persicus, mean abundance, spatial distribution, edge effect, habitat management plan, Goravan Sands Sanctuary, Armenia

Tadevosyan, T.L., Kharatyan, A.V., Fahradyan, S.N., Sargsyan, M.J., Amirkhanyan, M.V. 2007. GIS of the Goravan Sands sanctuary, and it's practical implementation. Materials of Intern. Youth Sci. Conf "Mountain areas - ecological problems of cities", Yerevan, : 147. (In Russian) Request a scanned copy via e-mail

Tadevosyan T.L. 2007. The role of vegetation in microhabitat selection of syntopic lizards, Phrynocephalus persicus, Eremias pleskei and Eremias strauchi from Armenia. Amphibia-Reptilia 28 (3): 444-448 available at http://www.brill.nl/amre

Abstract. Composition and density of vegetation are important habitat quality indicators for reptiles. The goal of this note was to determine dominant plant species, optimal size and density in habitats of syntopic lizards in the Goravan Sands Sanctuary. The role of vegetation variables was considered in relation to differences in thermoregulation of syntopic Phrynocephalus persicus, Eremias pleskei, and Eremias strauchi. Microhabitats of P. persicus differed from that of E. pleskei and of E. strauchi by a relatively frequent encounter of the plant Achillea tenuifolia, which is considered as potential habitat quality indicator. Phrynocephalus persicus generally used microhabitats with sparser vegetation. It is supposed that the excessive growth of shading vegetation can have a more negative impact on P. persicus than on E. pleskei.

Tuniyev, B.S. and Ostrovskikh, S.V. 2001. Two new Species of Vipers of "Kaznakovi" Complex (Ophidia, Viperinae) From the Western Caucasus. // Russian Journal of Herpetology, Vol. 8, No 2, 2001, pp 117-126. Request a scanned copy via e-mail